Thread: Logarithmic equation

I'm not sure how if I have made mistakes. Nevertheless, I don't know how I should continue.

Any help appreciated.

Thanks

Originally Posted by IAlexN

I'm not sure how if I have made mistakes. Nevertheless, I don't know how I should continue.

Any help appreciated.

Thanks

That minus sign on your last step is a trouble maker, as that will get you nowhere really.

from your 4th step its straight forward from there.




and you solve it like a quadratic equation:

so basically:



y= is either 2,1

thus x= 100, or 10 and log(x)= 2, or 1

Originally Posted by Heinsbergrelatz

That minus sign on your last step is a trouble maker, as that will get you nowhere really.

from your 4th step its straight forward from there.




and you solve it like a quadratic equation:

so basically:



y= is either 2,1

thus x= 100, or 10 and log(x)= 2, or 1

Thanks to both for the quick replies.